package com.mmall.util;

import java.math.BigDecimal;

/**
 * @ClassName: BigDecimalUtil
 * @Title: mmall
 * @Package: com.mmall.util
 * @Description:
 * @author: liuqingsong
 * @E-mail: lqs_email@163.com
 * @version: 创建时间: 2019/7/15 10:13
 */
public class BigDecimalUtil {

    private BigDecimalUtil(){

    }

    public static BigDecimal add(double v1,double v2){
        BigDecimal b1=new BigDecimal(Double.toString(v1));
        BigDecimal b2=new BigDecimal(Double.toString(v2));
        return b1.add(b2);
    }
    public static BigDecimal sub(double v1,double v2){
        BigDecimal b1=new BigDecimal(Double.toString(v1));
        BigDecimal b2=new BigDecimal(Double.toString(v2));
        return b1.subtract(b2);
    }
    public static BigDecimal mul(double v1,double v2){
        BigDecimal b1=new BigDecimal(Double.toString(v1));
        BigDecimal b2=new BigDecimal(Double.toString(v2));
        return b1.multiply(b2);
    }
    public static BigDecimal div(double v1,double v2){
        BigDecimal b1=new BigDecimal(Double.toString(v1));
        BigDecimal b2=new BigDecimal(Double.toString(v2));
        return b1.divide(b2,2,BigDecimal.ROUND_HALF_UP);//除不尽的情况：四舍五入，保留两位小数
    }

}
